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EP3556493B1 - Systèmes de frittage par laser comprenant un dispositif de retour de poudre et procédé - Google Patents

Systèmes de frittage par laser comprenant un dispositif de retour de poudre et procédé Download PDF

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Publication number
EP3556493B1
EP3556493B1 EP19172241.2A EP19172241A EP3556493B1 EP 3556493 B1 EP3556493 B1 EP 3556493B1 EP 19172241 A EP19172241 A EP 19172241A EP 3556493 B1 EP3556493 B1 EP 3556493B1
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EP
European Patent Office
Prior art keywords
powder
laser sintering
laser
sinterable
return
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP19172241.2A
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German (de)
English (en)
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EP3556493A1 (fr
Inventor
David H. CULLEN
Rafael Enrique HIDALGO
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3D Systems Inc
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3D Systems Inc
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Priority to EP22164716.7A priority Critical patent/EP4049832A1/fr
Publication of EP3556493A1 publication Critical patent/EP3556493A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/357—Recycling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/10—Auxiliary heating means
    • B22F12/13—Auxiliary heating means to preheat the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/52—Hoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/60—Planarisation devices; Compression devices
    • B22F12/63—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/295—Heating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/35—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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    • B29C64/364—Conditioning of environment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/30—Process control
    • B22F10/36—Process control of energy beam parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/70—Recycling
    • B22F10/73—Recycling of powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/20—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/004—Filling molds with powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/218—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/227—Driving means
    • B29C64/236—Driving means for motion in a direction within the plane of a layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B29C64/329—Feeding using hoppers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/364—Conditioning of environment
    • B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2071/00—Use of polyethers, e.g. PEEK, i.e. polyether-etherketone or PEK, i.e. polyetherketone or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention is related to laser sintering systems, and more particularly, to laser sintering systems apparatus and methods for improving part quality and reduced disposal of used, unsintered powder.
  • Laser sintering is one form of additive manufacturing that fabricates three-dimensional objects from digital data.
  • laser sintering heats layers of powder, typically a polymer or a metal, with a laser to cause the powder particles to fuse to one another in predetermined patterns to define the cross-sectional layers of the object being fabricated.
  • powder typically a polymer or a metal
  • Such techniques are disclosed in US Patent Nos. 4,863,538 ; 5,155,321 ; 5,252,264 ; 5,352,405 ; 6,815,636 ; 7,569,174 ; and 7,807,947 .
  • EP1771267 A1 also discloses laser sintering systems for fabricating three dimensional objects based upon design data and from a sinterable powder.
  • laser attenuation is laser attenuation during the build process whereby the laser power at the image plane (the surface of the sinterable powder being exposed to the laser beam) changes (typically decreases).
  • Such change in laser power may be due to a number of issues and can lead to parts being different colors from the bottom to the top (along the z-axis) or having different mechanical properties along the z-axis.
  • the result is that operators of laser sintering machines must dispose of a certain amount of used laser sintering powder to maintain part quality.
  • One embodiment of the present invention addresses the above needs and achieve other advantages that improve the part quality and reduce the need to dispose of sinterable powder.
  • One embodiment of the present invention includes methods for applying the powder layer to reduce the likelihood of surface features that can lead to reduced part strength or accuracy and that improve the density of the powder in the layer.
  • a return powder device comprising a piston is provided on an opposite side of the part bed (the area where the powder is laser sintered) from where the powder is deposited by a hopper.
  • the return powder device is lowered to allow the residual powder to pass beneath the roller and is raised after the roller has passed so that the roller can distribute the residual powder. Any residual powder that remains after the second pass is deposited into a powder return shoot on the side of the part bed.
  • Typical laser sintering systems do not include laser power measurement devices (measurements are simply done during service by a serviceperson) or the laser power is measure prior to the laser beam entering the build chamber.
  • the build chamber of a laser sintering system is typically very hot and includes fumes and dust that can adversely affect surfaces.
  • a laser power measurement device that is within the build chamber can be provided to determine the laser power delivered to the powder layers in order to adjust or control the scan speed and/or other parameters to ensure that the power being delivered to the sinterable powder is consistent to avoid degradation or other changes in part quality or accuracy.
  • the laser power measurement device is positioned below the laser window (typically on the ceiling of the build chamber through which the laser enters the build chamber), but above the heaters that heat the sinterable powder (primarily by radiation) so that the device does not block heat delivered to the powder and/or become overheated.
  • the laser power measurement device comprises a movable mirror that is extended from a position outside the laser scanning area into a position where the laser can be directed to the mirror to direct the laser to the sensing device.
  • the mirror can be retracted out of the way of the laser.
  • the laser power measurements are taken during the application of a new powder layer so that the build time for the part(s) is not increased.
  • the laser power measurement device is a sensor on a movable (such as rotatable) arm that may be selectively positioned for the laser to project directly onto it.
  • Still further embodiments of the present invention may include a chute device for the deposition of powder between the roller and part bed with little or no dust being created.
  • the chute device of certain embodiments is a rigid slot below the hopper that extends to near the surface the powder is being deposited to minimize the distance the powder must fall, thus minimizing the amount of dust created.
  • the chute device is rotatable so that it does not interfere with the movement of the roller.
  • the chute is also positioned so that it does not block the laser beam from the part bed.
  • the chute includes heater elements to preheat the powder to be deposited.
  • roller heater positioned below or proximate the stationary roller position (where the roller is parked during the laser scanning operation) so that the roller surface may be heated to a desired temperature.
  • the roller heater may alternatively comprise a chute heater that pre-heats powder in the chute and also heats the roller surface.
  • the roller may be rotated so that the roller heater evenly heats the surface of the roller to prevent temperature gradients on the roller surface which can lead to undesirable adhesion of powder to some, but not all, surfaces of the roller which results in powder being slung behind the roller which further results in uneven powder surfaces that ultimately result in rough surfaces or other imperfections in the final part.
  • Still further embodiments of the present invention include an air scrubber that cleans the air (consisting primarily of nitrogen) within the build chamber.
  • the air is cooled through the scrubber to assist with the removal of airborne contaminants by the filter(s).
  • the exhaust air of the scrubber that is recirculated back into the build chamber is exhausted into a heater bracket that retains the heaters (that heat the powder by radiation and convection) in order to (i) reheat the relatively cool recirculated air and (ii) cool the heater brackets and heaters so that the heaters are not overheated.
  • the heater brackets have exhaust holes along an outwardly facing surface so that the air is circulated back into the chamber in a way that does not create significant turbulence or other undesirable air flow that could adversely affect the laser sintering process. Therefore, the various embodiments of the present invention provide significant improvements to the laser sintering system and process that result in improved part quality and reduced waste material.
  • laser sintering systems in accordance with embodiments of the present invention are illustrated that include many novel upgrades to prior art laser sintering systems that increase part quality and reduce powder disposal.
  • the part quality may be improved by providing consistent energy delivery to the sinterable powder so that the material properties are improved and consistent throughout the part in all directions (x-axis (side to side in the build chamber), y-axis (front to back in the build chamber), and z-axis (bottom to top in the build chamber)).
  • some disclosures in particular those relating to the dual APL provide powder layers of improved density and with no or minimum peaks, valleys, or voids that provide better flow control of laser sintered particles that enables the creation of more accurate, stronger parts and enables powder to be reused (the powder used in a laser sintering build process but not sintered) for many more build processes, thus significantly reducing the need for virgin powder (new/fresh powder that has not undergone a build process) and the need to dispose of used powder. Therefore, costs associated with laser sintering of parts can be significantly reduced which makes parts made by laser sintering more affordable, and ultimately results in laser sintering becoming more competitive against parts made by other additive manufacturing techniques, subtractive manufacturing techniques, and other traditional manufacturing techniques.
  • the illustrated embodiments are designed for polymer systems that use polyamide powders or PEEK powders or other polymer powders; however, other embodiments of the present invention may be used with further materials such as metals, composites, ceramics, and any other powder materials used to form three-dimensional objects from digital data.
  • the laser sintering system 10 includes a build chamber 12, a removable part bed cart 14, and a laser assembly 16 that includes the laser, scanning mirrors and other optics similar to prior art laser sintering systems.
  • the laser sintering system 10 also includes a control panel 18 or other user interface, such as a touch screen computer or tablet, for the operator to control and/or monitor the laser sintering system.
  • FIG. 1 also shows portions of the laser sintering system 10 that are not inside the build chamber 12, such as the powder hopper 20, from which powder is supplied to the build chamber, and the scrubber 22 that cleans and recirculates the air (primarily nitrogen) in the build chamber.
  • FIG. 2 is a cross-section of the laser sintering system that illustrates additional features of the system, both inside and outside the build chamber 12.
  • the return powder receptacle 24 receives powder that is not used during the dual APL process. Powder (not shown) deposited into the return powder receptacle 24 can be stored for later use in a subsequent build process or recirculated automatically back to the hopper 20 for use in the same or subsequent build process.
  • FIG. 2 also illustrates components and systems within the build chamber 12 such as the roller 26, the chute 28, the image plane 30 where the powder layer is laser sintered (the top layer of the part bed 31), and the return powder device 32 (also shown in FIG. 10 ), which in the illustrated embodiment comprises a return powder piston.
  • Further embodiments of the method of the present invention may comprise alternative return powder devices that transfer a portion of powder from one side of the powder distribution device to the other side of the powder distribution device in preparation for the second pass of the roller or other powder distributing device.
  • the laser power measurement device 34 is also shown in FIG. 2 and is positioned between (along the z-axis) the laser window 36 and the heaters 38.
  • Dual APL is the process of moving the roller across the part bed 31 two times for each layer of powder distributed on the part bed.
  • Prior art systems typically used a single pass of the roller or other powder distributing device, such as a doctor blade or a doctor blade like structure that holds powder and deposits powder as it moves across the part bed.
  • Such systems typically have hoppers or supply powder pistons on both sides of the part bed, while other prior art systems have a single hopper but deposit powder for a first layer with a first pass and for a second layer with a second pass (by depositing powder atop the roller assembly (or other powder distributing device) and dislodging the powder on the side of the part bed opposite the hopper).
  • Still other prior art systems use a single pass of the roller or other powder distributing device to apply powder layer in the single pass and then simply return the powder distributing device to its original position without applying a powder layer during the return movement because no powder is provided on the leading edge in the direction of the return.
  • the powder density is significantly improved, as well as quality of the surface of the powder layer applied.
  • the density of the powder in the powder layer is important because it has been discovered that the heating and laser sintering of the denser powder is more stable as the fluence (flow) of the temporarily melted material is better controlled during laser sintering.
  • the improved density of the layers provided by dual APL enables used powders to be used for many more build processes because even though the powder quality slightly degrades with each build process it undergoes, the used powder still can create parts with satisfactory part quality (for example, surface quality is smooth compared to prior art techniques where reused powder can lead to rough surfaces such as the well-known "orange peel” if too much powder is used too many times) and satisfactory strength. Therefore, the higher density powder layers provided by the dual APL process significantly reduce the amount of used sinterable powder that must be discarded, thus reducing the costs associated with laser sintering while providing parts of better quality and strength.
  • the dual APL technique comprises the following general steps:
  • the dual APL is distinguishable from other techniques because it comprises two passes of distributing powder, which is not obvious because two passes requires additional time for each layer, which increases the build time, relative to a prior art single pass system, for each part which reduces the throughput of a laser sintering system if all other parameters are kept constant.
  • certain embodiments of the present invention comprise a chute 28 positioned between the hopper 20 and the surface between the roller home position (where the roller is positioned during the laser scanning operation) and the part bed so that a new supply of powder can be deposited in front of the roller before the roller's first pass across the part bed.
  • the chute of the illustrated embodiments comprises a slot extending along the y-axis (front to back of the system) that is rotatable about an axis aligned along the y-axis.
  • the chute 28 may be rotated automatically or it may be moved by the motion of the roller, such as by contact with at least one pin 40 positioned on the roller assembly 42 that moves the roller 26.
  • the roller 26 or other portion of the roller assembly 42 may push the chute from the down position in FIGS. 3A and 4A to the up position in FIGS. 3B and 4B at the beginning of the first pass (first APL) across the part bed, and the pin 40 or other portion of the roller assembly may push the chute back to the down position at the end of the second pass (second APL) across the part bed such that the chute is always in the down position when the roller is in the home position.
  • the chute may be spring loaded or otherwise biased to remain in the up position unless it is held in the down position by the pin 40 or other portion of the roller assembly.
  • the chute 28 simply serves as a conduit to deposit powder released from the hopper near the roller in a manner that minimizes dusting or other creation of airborne particles.
  • the illustrated embodiment is a simple slot, but further embodiments of the present invention include alternative chutes that likewise reduce the dusting, spreading, or other undesirable movement of the deposited powder.
  • the chute 28 also comprises a chute heater 44 that pre-heats the powder in the chute so that the deposited powder is closer to the temperature the powder must attain when it is spread on the part bed prior to the melting/fusing of the powder particles by the laser. By pre-heating the powder, the build process time may be reduced.
  • the chute heater or other heater in the area may be used to pre-heat the roller.
  • the roller heater may keep the surface temperature of the roller at a desired level so that the roller distributes the powder in the desired manner. While the roller is in the home position during laser sintering of the powder layers, the roller is slowly rotated (slewed) so that the roller surface is evenly heated. Further embodiments include alternative roller heaters to heat the surface of the roller.
  • FIGS. 5A-6C illustrate a laser power measurement device that can selectively determine the laser power (and energy) delivered to the layer of sinterable powder. Because the build chamber is hot and includes fumes and gases that may cause surfaces, such as the laser window, to lose transparency, prior art systems have not measured the laser power within the build chamber but have instead measured the laser power prior to (upstream of) the laser beam entering the build chamber or measured the laser power during periodic servicing.
  • certain embodiments of the present invention measure the laser power within the build chamber periodically during the build to determine changes in the laser power so that the laser can be adjusted/calibrated to ensure that the powder layers are receiving the desired amounts of energy (such as by changing the laser power or changing the scanning speed that the laser beam is moved across the powder layers).
  • the laser power measurement device 43 includes a laser power sensor of a type known in the art and a telescoping mirror 46 that may be selectively positioned in the laser path to reflect the laser beam to the sensor for measurement purposes.
  • the mirror 46 in the retracted position is outside the range of motion of the laser beam so that the laser power measurement device does not block the laser beam from the part bed.
  • the mirror 46 in the extended position is positioned within the range of motion of the laser beam, such as in the center, so that the laser beam may be selectively projected to the sensor within the laser power measurement device 34.
  • FIGS. 6A-6C illustrate one embodiment of the laser power measurement device 43 in which the mirror 46 is moved by a hollow telescoping shaft that is sealed about its entrance into the build chamber 12. Further embodiments include alternative laser power measurement devices for measuring the power of the laser beam within the build chamber.
  • the laser power measurement device is positioned above the heaters near the laser window 36; however, further embodiments include the laser power measurement device at any location in the build chamber where the laser can be in optical communication with the laser power measurement device.
  • FIGS. 7A-7C illustrate a scrubber 22 in accordance with one embodiment, that includes an initial cooling section 48 and a filtration section 50.
  • the scrubber 22 includes a scrubber inlet 52 through which air is pulled from the build chamber 12 (such as from above the heaters 38 and below the laser window 36) and two scrubber outlets 54 through which air is expelled back to the build chamber (such as into a heater bracket as described below).
  • the cooling section 48 is a serpentine passage or other structure that causes the relatively hot air from the build chamber 12 to be cooled, such as with the use of a heat sink and fan assembly 56 in thermal communication with the passages in the cooling section.
  • the air is cooled to assist in the precipitation of contaminants from the air.
  • the air is then passed through the filter section 50 comprising one or more filters that capture the contaminants from the air passing therethrough.
  • the air is circulated through the scrubber 22 by the blower fan 58 rotated by the blower motor 60.
  • FIGS. 8 and 9 show the pipe or tubing that connects the build chamber to the scrubber inlet 52, as well as one of the build chamber inlets 62 for the return of the air from the scrubber.
  • the build chamber inlets 62 are in flow communication with the respective heater bracket 64 in the build chamber 12.
  • the relatively cool air from the scrubber flows into the heater bracket 64 in order to transfer heat from the heater bracket 64 and the heaters 38, thereby (i) assisting in the cooling of the heaters, which in some embodiments is desirable to increase the operable life of the heaters and/or to increase the performance of the heaters, and (ii) pre-heating returned scrubbed air.
  • the pre-heated air passes out of the array of holes on the side of each heater bracket 64.
  • the array of holes are sized and positioned to minimize the amount of turbulence or other undesirable air flow within the build chamber (for example, the powder should not be moved by the air in the build chamber).
  • the enclosed documentation further describes the apparatus and processes of the present invention, as well as test results produced therefrom.
  • the chart entitled MP Data show the significant improvements in mechanical properties relative to prior art techniques.
  • the columns of the MP Data chart are for "Recycle Runs" where runs 1 through 4 were conducted without adding any new powder to determine the deterioration in part mechanical properties based upon the lack of new/fresh/virgin powder.
  • the Recycle Runs were used to make a plurality of ASTM638 bars for which the mechanical properties of Table 1 were tested for in accordance with industry standard practices known by those of skill in the art.
  • the Recycle Runs included the respective amounts of fresh (previously unused powder), overflow (powder previously used but retrieved from overflow reservoir and not the part cake), and part cake (powder previously used and retrieved from the part cake).
  • the Recycle Runs were conducted with generally consistent build parameters and part parameters, including but not limited to a fill laser power of 60W, a fill scan count of 1, a fill scan speed of 12 M/sec, an outline laser power of 1 5W, an outline fill scan count of 1, a slicer fill scan spacing of 0.2mm, and a sinter scan of 1.
  • a fill laser power of 60W a fill scan count of 1, a fill scan speed of 12 M/sec
  • an outline laser power of 1 5W an outline fill scan count of 1
  • a slicer fill scan spacing of 0.2mm a sinter scan of 1.
  • the decreases in mean density, tensile modulus, and tensile strength are significantly improved compared to prior art laser sintering apparatus and methods.
  • Test data such as provided in the MP Data chart demonstrate that the embodiments of the present invention can be used to reduce the need for virgin powder and the corresponding need to dispose of used powder.
  • Table 1 MP Data Mechanical Properties Recycle Run 0 Recycle Run 1 Recycle Run 2 Recycle Run 3 Recycle Run 4 Density (LT Front) (g/cc) 0.975 0.971 09.67 Density (RT Front) (g/cc) 0.973 0.974 0.957 Density (Middle) (g/cc) 0.973 0.974 0.964 Density (LT Back) (g/cc) 0.973 0.968 0.964 Density (RT Back) (g/cc) 0.971 0.974 0.957 MEAN DENSITY 0.973 0.972 0.962 Tensile Modulus (X) 1911 1925 1798 Tensile Modulus (X) 1887 1948 1771 Tensile Modulus (X) 1878 1938 1845 Tensile Modulus (X) 1939 1917 1801 X MEAN MOD

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Claims (12)

  1. Système de frittage laser (10) pour fabriquer des objets tridimensionnels sur la base de données de conception et à partir d'une poudre frittable, ledit système de frittage laser comprenant :
    une trémie (20) pour alimenter la poudre frittable dans une chambre de fabrication (12) dudit système de frittage laser,
    un dispositif de distribution de poudre pour distribuer la poudre frittable dans une couche sur un garnissage partiel (31), et
    un dispositif de poudre de retour (32) en face du garnissage partiel à partir de la trémie,
    dans lequel le dispositif de poudre de retour peut être déplacé sélectivement pourqu'une portion de poudre puisse être transférée à partir d'un côté du dispositif de distribution de poudre à l'autre côté, et
    dans lequel le dispositif de poudre de retour (32) comprend un piston de poudre de retour pouvant être élevé ou abaissé sélectivement.
  2. Système de frittage laser selon la revendication 1, dans lequel le dispositif de distribution de poudre comprend un rouleau à contre-rotation (26).
  3. Système de frittage laser selon l'une des revendications 1 ou 2, dans lequel le système de frittage laser comprend en outre un dispositif de mesure de la puissance laser pouvant mesurer un faisceau laser au sein de la chambre de fabrication.
  4. Système de frittage laser selon l'une quelconque des revendications 1 à 3, dans lequel le système de frittage laser comprend en outre un épurateur (22) et un support de chauffage pour supporter au moins un dispositif de chauffage (38), dans lequel de l'air évacué sortant de l'épurateur est alimenté à la chambre de fabrication (12) à travers le support de chauffage.
  5. Système de frittage laser selon l'une quelconque des revendications 1 à 4, dans lequel le système de frittage laser comprend en outre une chute à travers laquelle la poudre frittable passe entre la trémie et le dispositif de distribution de poudre, dans lequel ladite chute est de préférence pivotante.
  6. Système de frittage laser selon la revendication 5, dans lequel le système de frittage laser comprend en outre un chauffage de chute pour préchauffer de la poudre frittable au sein de la chute.
  7. Procédé de frittage laser d'un objet tridimensionnel sur la base de données de conception et à partir d'une poudre frittable, ledit procédé comprenant les étapes consistant à :
    déposer de la poudre frittable entre un dispositif de distribution de poudre (42) et un garnissage partiel (31),
    distribuer la poudre frittable sur le garnissage partiel pour former une première couche de poudre frittable,
    causer qu'une partie de retour de la poudre frittable soit repositionnée d'en face du garnissage partiel à partir du dispositif de distribution de poudre à entre le garnissage partiel et le dispositif de distribution de poudre, où l'étape consistant à causer qu'une partie de retour de la poudre frittable soit repositionnée comprend l'abaissement d'un dispositif de poudre de retour (32) pourque la poudre résiduelle puisse passer dessous ledit dispositif de distribution de poudre, et dans lequel le dispositif de poudre de retour est élevé après le dispositif de distribution de poudre a passé, de manière que le dispositif de distribution de poudre puisse distribuer la poudre résiduelle, et distribuer la partie de retour de la poudre frittable sur le garnissage partiel pour former en outre la première couche de poudre frittable,
    dans lequel les deux étapes de distribution sont réalisées avant que la couche de poudre frittable soit sensiblement soumise à frittage laser, et une seconde couche de poudre frittable soit distribuée.
  8. Procédé selon la revendication 7, dans lequel ledit dispositif de distribution de poudre (42) comprend un rouleau à contre-rotation (26).
  9. Procédé selon la revendication 8, dans lequel l'étape consistant à causer qu'une partie de retour de la poudre frittable soit repositionnée comprend l'abaissement du dispositif de poudre de retour pourque la poudre résiduelle puisse passer dessous ledit rouleau (26), et dans lequel le dispositif de poudre de retour est élevé après le rouleau (26) a passé, de manière que le rouleau puisse distribuer la poudre résiduelle.
  10. Procédé selon les revendications 7 à 9, dans lequel ladite étape consistant à déposer de la poudre frittable comprend l'étape consistant à alimenter la poudre frittable à travers une chute.
  11. Procédé selon la revendication 10, dans lequel ladite étape consistant à alimenter la poudre frittable à travers une chute comprend en outre l'étape consistant à préchauffer la poudre frittable au sein de la chute.
  12. Procédé selon l'une quelconque des revendications 7 à 11, dans lequel le procédé comprend en outre l'étape consistant à mesurer la puissance d'un faisceau laser au sein de la chambre de fabrication.
EP19172241.2A 2013-03-15 2014-03-14 Systèmes de frittage par laser comprenant un dispositif de retour de poudre et procédé Active EP3556493B1 (fr)

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US201361793870P 2013-03-15 2013-03-15
PCT/US2014/028671 WO2014144319A1 (fr) 2013-03-15 2014-03-14 Trémie pour systèmes de frittage laser
EP14730240.0A EP2969485B1 (fr) 2013-03-15 2014-03-14 Glissière pour systèmes de frittage laser

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Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6178492B2 (ja) * 2013-03-15 2017-08-09 スリーディー システムズ インコーポレーテッド レーザ焼結システムのためのシュート
US20150367415A1 (en) 2014-06-20 2015-12-24 Velo3D, Inc. Apparatuses, systems and methods for three-dimensional printing
ES2741528T3 (es) * 2014-12-23 2020-02-11 Renishaw Plc Aparato de fabricación aditiva
JP6439477B2 (ja) * 2015-02-10 2018-12-19 株式会社リコー 立体造形装置、立体造形方法、プログラム
DE102015107178A1 (de) 2015-05-07 2016-11-10 Cl Schutzrechtsverwaltungs Gmbh Vorrichtung zum Herstellen von dreidimensionalen Objekten durch aufeinanderfolgendes Verfestigen von Schichten sowie ein zugehöriges Verfahren
WO2017063829A1 (fr) * 2015-10-15 2017-04-20 Arcam Ab Procédé et appareil pour la production d'articles tridimensionnels
US10583483B2 (en) 2015-10-15 2020-03-10 Arcam Ab Method and apparatus for producing a three-dimensional article
EP3368314A4 (fr) 2015-10-30 2019-05-01 Seurat Technologies, Inc. Système d'ingestion multifonction pour fabrication additive
US10065270B2 (en) 2015-11-06 2018-09-04 Velo3D, Inc. Three-dimensional printing in real time
WO2017100695A1 (fr) 2015-12-10 2017-06-15 Velo3D, Inc. Impression en trois dimensions intelligente
WO2017143077A1 (fr) 2016-02-18 2017-08-24 Velo3D, Inc. Impression tridimensionnelle précise
US10589464B2 (en) * 2016-03-17 2020-03-17 Hewlett-Packard Development Company, L.P. Spreader roller for additive manufacturing
EP3436251B1 (fr) * 2016-05-12 2023-09-20 Hewlett-Packard Development Company, L.P. Post-traitement dans des systèmes d'impression 3d
US11059309B2 (en) 2016-05-12 2021-07-13 Hewlett-Packard Development Company, L.P. Calibrating printing stations
KR101843493B1 (ko) 2016-06-01 2018-03-29 한국기계연구원 분말 밀도 측정부를 구비한 3d 프린터 및 이를 이용한 3d 프린팅 방법
GB201610267D0 (en) * 2016-06-13 2016-07-27 Digital Metal Ab Slot die manufacturing apparatus and manufacturing method
EP3492244A1 (fr) 2016-06-29 2019-06-05 VELO3D, Inc. Système d'impression tridimensionnelle et procédé d'impression tridimensionnelle
US11691343B2 (en) 2016-06-29 2023-07-04 Velo3D, Inc. Three-dimensional printing and three-dimensional printers
IT201600068832A1 (it) * 2016-07-01 2018-01-01 3D4Mec Srl Stampante 3d laser
CN109070477B (zh) 2016-07-26 2021-04-02 惠普发展公司，有限责任合伙企业 冷却3d打印系统中的构建材料
US20180093418A1 (en) 2016-09-30 2018-04-05 Velo3D, Inc. Three-dimensional objects and their formation
US20180126462A1 (en) 2016-11-07 2018-05-10 Velo3D, Inc. Gas flow in three-dimensional printing
US10611092B2 (en) 2017-01-05 2020-04-07 Velo3D, Inc. Optics in three-dimensional printing
US10549519B2 (en) * 2017-01-12 2020-02-04 Caterpillar Inc. Systems and methods for calibrating additive manufacturing operations based on energy density
US10919286B2 (en) * 2017-01-13 2021-02-16 GM Global Technology Operations LLC Powder bed fusion system with point and area scanning laser beams
US10357829B2 (en) 2017-03-02 2019-07-23 Velo3D, Inc. Three-dimensional printing of three-dimensional objects
JP6880492B2 (ja) * 2017-03-17 2021-06-02 株式会社リコー 三次元造形装置、三次元造形物の製造方法及びプログラム
US20180281237A1 (en) 2017-03-28 2018-10-04 Velo3D, Inc. Material manipulation in three-dimensional printing
US11305487B2 (en) * 2017-04-21 2022-04-19 Hewlett-Packard Development Company, L.P. Additive manufacturing roller within radiative heat transfer area
US10191456B2 (en) * 2017-05-01 2019-01-29 Desktop Metal, Inc. Method and system for software defined metallurgy
CN110997285B (zh) * 2017-07-31 2022-05-06 惠普发展公司，有限责任合伙企业 在三维打印操作期间可输送的构建材料的不同混合物
AU2018309559B2 (en) * 2017-08-03 2024-01-04 Effusiontech IP Pty Ltd A method of 3D printing
WO2019067545A1 (fr) * 2017-09-28 2019-04-04 3D Systems, Inc. Appareil haute capacité pour la fabrication de stratifiés à partir de matériaux en poudre
US11351724B2 (en) 2017-10-03 2022-06-07 General Electric Company Selective sintering additive manufacturing method
US11420384B2 (en) 2017-10-03 2022-08-23 General Electric Company Selective curing additive manufacturing method
CN111201143A (zh) 2017-10-16 2020-05-26 惠普发展公司，有限责任合伙企业 用于流体分配组件的通气口
US11117324B2 (en) 2017-10-20 2021-09-14 Formlabs, Inc. Techniques for integrated preheating and coating of powder material in additive fabrication and related systems and methods
US11254052B2 (en) 2017-11-02 2022-02-22 General Electric Company Vatless additive manufacturing apparatus and method
US11590691B2 (en) 2017-11-02 2023-02-28 General Electric Company Plate-based additive manufacturing apparatus and method
US10864678B2 (en) * 2017-11-27 2020-12-15 3D4Mec Srl Laser 3D printer
US10272525B1 (en) 2017-12-27 2019-04-30 Velo3D, Inc. Three-dimensional printing systems and methods of their use
US10144176B1 (en) 2018-01-15 2018-12-04 Velo3D, Inc. Three-dimensional printing systems and methods of their use
US11225022B2 (en) 2018-01-25 2022-01-18 Hewlett-Packard Development Company, L.P. Build material dispensing device
US10821669B2 (en) 2018-01-26 2020-11-03 General Electric Company Method for producing a component layer-by-layer
US10821668B2 (en) 2018-01-26 2020-11-03 General Electric Company Method for producing a component layer-by- layer
CN108436085B (zh) * 2018-04-28 2024-01-30 陕西西北工业技术研究院有限责任公司 一种激光成型仓体结构
US12121964B2 (en) 2018-11-07 2024-10-22 James J. Myrick Processes, compositions and systems for 2D and 3D printing
US11724336B2 (en) * 2019-02-06 2023-08-15 Honeywell Federal Manufacturings Technologies, Llc Apparatus for a laser welding system
US11794412B2 (en) 2019-02-20 2023-10-24 General Electric Company Method and apparatus for layer thickness control in additive manufacturing
US11498283B2 (en) 2019-02-20 2022-11-15 General Electric Company Method and apparatus for build thickness control in additive manufacturing
US11179891B2 (en) 2019-03-15 2021-11-23 General Electric Company Method and apparatus for additive manufacturing with shared components
EP3718746A1 (fr) * 2019-04-02 2020-10-07 Concept Laser GmbH Appareil de fabrication additive d'objets tridimensionnels
WO2020222761A1 (fr) 2019-04-29 2020-11-05 Hewlett-Packard Development Company, L.P. Dispositif d'étalement de fabrication additive doté d'un dispositif de chauffage
JP6848010B2 (ja) * 2019-06-11 2021-03-24 株式会社ソディック 積層造形装置
JP2021020319A (ja) 2019-07-24 2021-02-18 株式会社荏原製作所 Ａｍ装置
CA3148849A1 (fr) 2019-07-26 2021-02-04 Velo3D, Inc. Assurance qualite dans la formation d'objets tridimensionnels
CN110901049B (zh) * 2019-11-15 2020-10-02 华中科技大学 一种适用于宽温度梯度下选择性熔化成型的喷印打印设备
JP6990725B2 (ja) * 2020-01-30 2022-01-12 株式会社ソディック 積層造形装置および三次元造形物の製造方法
US11707883B2 (en) 2020-11-20 2023-07-25 General Electric Company Foil interaction device for additive manufacturing
US12162074B2 (en) 2020-11-25 2024-12-10 Lawrence Livermore National Security, Llc System and method for large-area pulsed laser melting of metallic powder in a laser powder bed fusion application
US11865780B2 (en) 2021-02-26 2024-01-09 General Electric Company Accumalator assembly for additive manufacturing
JP2024518663A (ja) * 2021-05-07 2024-05-01 ニコン エスエルエム ソリューションズ アーゲー 付加製造装置用のプロセスチャンバおよびプロセスチャンバを作動させる方法
US11951679B2 (en) 2021-06-16 2024-04-09 General Electric Company Additive manufacturing system
US11731367B2 (en) 2021-06-23 2023-08-22 General Electric Company Drive system for additive manufacturing
US11958249B2 (en) 2021-06-24 2024-04-16 General Electric Company Reclamation system for additive manufacturing
US11958250B2 (en) 2021-06-24 2024-04-16 General Electric Company Reclamation system for additive manufacturing
US11826950B2 (en) 2021-07-09 2023-11-28 General Electric Company Resin management system for additive manufacturing
US12172379B2 (en) 2021-08-11 2024-12-24 General Electric Company Cleaning system for additive manufacturing
US12370741B2 (en) 2021-08-13 2025-07-29 General Electric Company Material deposition assembly for additive manufacturing
US12296535B2 (en) 2021-08-24 2025-05-13 General Electric Company Attachment structure for additive manufacturing
US11813799B2 (en) 2021-09-01 2023-11-14 General Electric Company Control systems and methods for additive manufacturing
EP4249216A1 (fr) 2022-03-23 2023-09-27 General Electric Company Systèmes et procédés de fabrication additive
DE102022111992A1 (de) * 2022-05-12 2023-11-16 Eos Gmbh Electro Optical Systems Kalibrierung eines Energiestrahls
US12403654B2 (en) 2022-09-30 2025-09-02 General Electric Company Systems and methods for additive manufacturing
US20240190082A1 (en) * 2022-12-13 2024-06-13 The Boeing Company Methods of additively manufacturing a manufactured component, additive manufacturing systems that perform the methods, and storage media that directs additive manufacturing systems to perform the methods
US20250319660A1 (en) * 2024-04-15 2025-10-16 General Electric Company Build material escapement assembly and additive manufacturing systems including same

Family Cites Families (181)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4247508B1 (en) 1979-12-03 1996-10-01 Dtm Corp Molding process
US4504064A (en) * 1982-09-07 1985-03-12 Moore Special Tool Co., Inc. Laser path seal
US5017753A (en) 1986-10-17 1991-05-21 Board Of Regents, The University Of Texas System Method and apparatus for producing parts by selective sintering
US5155324A (en) * 1986-10-17 1992-10-13 Deckard Carl R Method for selective laser sintering with layerwise cross-scanning
US5147587A (en) * 1986-10-17 1992-09-15 Board Of Regents, The University Of Texas System Method of producing parts and molds using composite ceramic powders
US4863538A (en) 1986-10-17 1989-09-05 Board Of Regents, The University Of Texas System Method and apparatus for producing parts by selective sintering
BR8707510A (pt) 1986-10-17 1989-02-21 Univ Texas Metodo e aparelhagem para produzir pecas por sinterizacao seletiva
US4944817A (en) 1986-10-17 1990-07-31 Board Of Regents, The University Of Texas System Multiple material systems for selective beam sintering
US5876550A (en) 1988-10-05 1999-03-02 Helisys, Inc. Laminated object manufacturing apparatus and method
WO1990003893A1 (fr) 1988-10-05 1990-04-19 Michael Feygin Procede et appareil ameliore de formation d'un objet integral a partir de laminages
US5182170A (en) 1989-09-05 1993-01-26 Board Of Regents, The University Of Texas System Method of producing parts by selective beam interaction of powder with gas phase reactant
US5155321A (en) 1990-11-09 1992-10-13 Dtm Corporation Radiant heating apparatus for providing uniform surface temperature useful in selective laser sintering
US6175422B1 (en) * 1991-01-31 2001-01-16 Texas Instruments Incorporated Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data
US5594652A (en) * 1991-01-31 1997-01-14 Texas Instruments Incorporated Method and apparatus for the computer-controlled manufacture of three-dimensional objects from computer data
US5253036A (en) * 1991-09-06 1993-10-12 Ledalite Architectural Products Inc. Near-field photometric method and apparatus
US5252264A (en) 1991-11-08 1993-10-12 Dtm Corporation Apparatus and method for producing parts with multi-directional powder delivery
US5216235A (en) * 1992-04-24 1993-06-01 Amray, Inc. Opto-mechanical automatic focusing system and method
DE4233812C1 (de) 1992-10-07 1993-11-04 Eos Electro Optical Syst Verfahren und vorrichtung zum herstellen von dreidimensionalen objekten
US5352405A (en) 1992-12-18 1994-10-04 Dtm Corporation Thermal control of selective laser sintering via control of the laser scan
DE4300478C2 (de) 1993-01-11 1998-05-20 Eos Electro Optical Syst Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts
DE4302418A1 (de) 1993-01-28 1994-08-11 Eos Electro Optical Syst Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts
SE504560C2 (sv) 1993-05-12 1997-03-03 Ralf Larson Sätt och anordning för skiktvis framställning av kroppar från pulver
US5427733A (en) * 1993-10-20 1995-06-27 United Technologies Corporation Method for performing temperature-controlled laser sintering
DE4400523C2 (de) 1994-01-11 1996-07-11 Eos Electro Optical Syst Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts
JP3520310B2 (ja) 1994-05-13 2004-04-19 イーオーエス ゲゼルシャフト ミット ベシュレンクテル ハフツング イレクトロ オプティカル システムズ ３次元物体の製造方法及び装置
JP3215881B2 (ja) 1994-05-27 2001-10-09 イーオーエス ゲゼルシャフト ミット ベシュレンクテル ハフツング イレクトロ オプティカル システムズ 鋳込み技術に使用される方法
WO1995034468A1 (fr) * 1994-06-14 1995-12-21 Soligen, Inc. Appareil de manipulation de poudre pour equipement de fabrication par addition
DE4436695C1 (de) 1994-10-13 1995-12-21 Eos Electro Optical Syst Verfahren zum Herstellen eines dreidimensionalen Objektes
DE4437284A1 (de) 1994-10-18 1996-04-25 Eos Electro Optical Syst Verfahren zum Kalibrieren einer Steuerung zur Ablenkung eines Laserstrahls
DE19511772C2 (de) 1995-03-30 1997-09-04 Eos Electro Optical Syst Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes
US5733497A (en) 1995-03-31 1998-03-31 Dtm Corporation Selective laser sintering with composite plastic material
DE19514740C1 (de) 1995-04-21 1996-04-11 Eos Electro Optical Syst Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes
DE19515165C2 (de) 1995-04-25 1997-03-06 Eos Electro Optical Syst Vorrichtung zum Herstellen eines Objektes mittels Stereolithographie
DE19516972C1 (de) 1995-05-09 1996-12-12 Eos Electro Optical Syst Vorrichtung zum Herstellen eines dreidimensionalen Objektes mittels Lasersintern
JP2847579B2 (ja) 1995-05-09 1999-01-20 イーオーエス ゲゼルシャフト ミット ベシュレンクテル ハフツング イレクトロ オプティカル システムズ レーザー焼結による３次元物体の製造装置
DE29513026U1 (de) 1995-08-16 1995-10-05 Eos Electro Optical Syst Vorrichtung zur schichtweisen Herstellung eines Objektes mittels Lasersintern
US5817206A (en) 1996-02-07 1998-10-06 Dtm Corporation Selective laser sintering of polymer powder of controlled particle size distribution
DE19606128A1 (de) 1996-02-20 1997-08-21 Eos Electro Optical Syst Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes
US6596224B1 (en) * 1996-05-24 2003-07-22 Massachusetts Institute Of Technology Jetting layers of powder and the formation of fine powder beds thereby
US6007318A (en) * 1996-12-20 1999-12-28 Z Corporation Method and apparatus for prototyping a three-dimensional object
US7037382B2 (en) * 1996-12-20 2006-05-02 Z Corporation Three-dimensional printer
US5846370A (en) 1997-03-17 1998-12-08 Delco Electronics Corporation Rapid prototyping process and apparatus therefor
US6213168B1 (en) * 1997-03-31 2001-04-10 Therics, Inc. Apparatus and method for dispensing of powders
WO1998043762A2 (fr) * 1997-03-31 1998-10-08 Therics, Inc. Procede de distribution de poudres
US6085122A (en) 1997-05-30 2000-07-04 Dtm Corporation End-of-vector laser power control in a selective laser sintering system
JP3528119B2 (ja) * 1997-10-27 2004-05-17 Ｙｋｋ株式会社 粉粒体の計量方法
US6066285A (en) * 1997-12-12 2000-05-23 University Of Florida Solid freeform fabrication using power deposition
DE19813742C1 (de) 1998-03-27 1999-07-15 Eos Electro Optical Syst Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes sowie Vorrichtung zum Aufbringen einer Schicht eines pulverförmigen Materials auf eine Oberfläche
US6151345A (en) 1998-07-07 2000-11-21 Dtm Corporation Laser power control with stretched initial pulses
JP2000117721A (ja) * 1998-10-09 2000-04-25 Matsuoka Concrete Kogyo Kk 生コンクリート投入機
DE19846478C5 (de) 1998-10-09 2004-10-14 Eos Gmbh Electro Optical Systems Laser-Sintermaschine
FR2790418B1 (fr) * 1999-03-01 2001-05-11 Optoform Sarl Procedes De Prot Procede de prototypage rapide permettant l'utilisation de materiaux pateux, et dispositif pour sa mise en oeuvre
DE19918613A1 (de) 1999-04-23 2000-11-30 Eos Electro Optical Syst Verfahren zur Kalibrierung einer Vorrichtung zum Herstellen eines dreidimensionalen Objektes, Kalibrierungsvorrichtung und Verfahren und Vorrichtung zur Herstellung eines dreidimensionalen Objektes
DE19928245B4 (de) 1999-06-21 2006-02-09 Eos Gmbh Electro Optical Systems Einrichtung zum Zuführen von Pulver für eine Lasersintereinrichtung
US6722872B1 (en) * 1999-06-23 2004-04-20 Stratasys, Inc. High temperature modeling apparatus
AU5930900A (en) 1999-07-12 2001-01-30 Unit Instruments, Inc. Pressure insensitive gas control system
JP2001038812A (ja) * 1999-08-03 2001-02-13 Toyota Motor Corp 粉粒体積層造形法における粉粒体循環装置
DE19937260B4 (de) 1999-08-06 2006-07-27 Eos Gmbh Electro Optical Systems Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts
DE19939616C5 (de) 1999-08-20 2008-05-21 Eos Gmbh Electro Optical Systems Vorrichtung zur generativen Herstellung eines dreidimensionalen Objektes
DE10007711C1 (de) 2000-02-19 2001-08-16 Daimler Chrysler Ag Vorrichtung und Verfahren zum Sintern eines Pulvers mit einem Laserstrahl
SE521124C2 (sv) 2000-04-27 2003-09-30 Arcam Ab Anordning samt metod för framställande av en tredimensionell produkt
JP2001334581A (ja) 2000-05-24 2001-12-04 Minolta Co Ltd 三次元造形装置
DE60114453T2 (de) 2000-11-27 2006-07-13 National University Of Singapore Verfahren und vorrichtung zur herstellung eines dreidimensionalen metallteils unter verwendung von hochtemperatur-direktlaserschmelzen
DE10105504A1 (de) 2001-02-07 2002-08-14 Eos Electro Optical Syst Vorrichtung zur Behandlung von Pulver für eine Vorrichtung zum Herstellen eines dreidimensionalen Objekts, Vorrichtung zum Herstellen eines dreidimensionalen Objekts und Verfahren zum Herstellen eines dreidimensionalen Objekts
US6492651B2 (en) 2001-02-08 2002-12-10 3D Systems, Inc. Surface scanning system for selective deposition modeling
DE10108612C1 (de) 2001-02-22 2002-06-27 Daimler Chrysler Ag Verfahren und Vorrichtung zum selektiven Lasersintern
GB2378150A (en) 2001-07-31 2003-02-05 Dtm Corp Fabricating a three-dimensional article from powder
GB2378151A (en) 2001-07-31 2003-02-05 Dtm Corp Fabricating a three-dimensional article from powder
US6902246B2 (en) * 2001-10-03 2005-06-07 3D Systems, Inc. Quantized feed system for solid freeform fabrication
JP3724437B2 (ja) 2002-02-25 2005-12-07 松下電工株式会社 三次元形状造形物の製造方法及びその製造装置
DE10216013B4 (de) * 2002-04-11 2006-12-28 Generis Gmbh Verfahren und Vorrichtung zum Auftragen von Fluiden
US7008209B2 (en) * 2002-07-03 2006-03-07 Therics, Llc Apparatus, systems and methods for use in three-dimensional printing
DE10235434A1 (de) 2002-08-02 2004-02-12 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Herstellen eins dreidimensionalen Objekts mittels eines generativen Fertigungsverfahrens
DE10235427A1 (de) 2002-08-02 2004-02-12 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Herstellen von dreidimensionalen Objekten mittels eines generativen Fertigungsverfahrens
DE10236697A1 (de) 2002-08-09 2004-02-26 Eos Gmbh Electro Optical Systems Verfahren und Vorrichtung zur Herstellung eines dreidimensionalen Objekts mittels Sintern
US6848494B2 (en) 2002-09-27 2005-02-01 3D Systems, Inc. Wetting agent for infiltrated aluminum preforms
US7036550B2 (en) 2002-09-27 2006-05-02 University Of Queensland Infiltrated aluminum preforms
US6823928B2 (en) 2002-09-27 2004-11-30 University Of Queensland Infiltrated aluminum preforms
US6997232B2 (en) 2002-09-27 2006-02-14 University Of Queensland Infiltrated aluminum preforms
DE10245617A1 (de) 2002-09-30 2004-04-08 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum schichtweisen Herstellen von dreidimensionalen Objekten
US7127292B2 (en) 2002-10-31 2006-10-24 Medtronic, Inc. Addressing recurrent atrial fibrillation
DE10256097A1 (de) 2002-12-02 2004-06-17 Eos Gmbh Electro Optical Systems Kunststoffpulver für das Lasersintern
SE524439C2 (sv) 2002-12-19 2004-08-10 Arcam Ab Anordning samt metod för framställande av en tredimensionell produkt
US20040144012A1 (en) 2003-01-29 2004-07-29 Adams Joseph S. Combustion-gas-powered paintball marker
US6814926B2 (en) 2003-03-19 2004-11-09 3D Systems Inc. Metal powder composition for laser sintering
US6815636B2 (en) 2003-04-09 2004-11-09 3D Systems, Inc. Sintering using thermal image feedback
SE527291C2 (sv) 2003-09-17 2006-02-07 Particular Ab Sätt att framställa smycken och andra ädelmetallprodukter med komplexa geometrier
SE527986C2 (sv) 2003-09-17 2006-07-25 Particular Ab C O Norlen Metallpulverblandning för framställning av ädelmetallprodukter och produkt
DE10360094C9 (de) 2003-12-20 2009-11-05 Cl Schutzrechtsverwaltungs Gmbh Pulverdosierung - automatische Pulverzustellung
DE102004003485B4 (de) 2004-01-23 2005-06-16 Eos Gmbh Electro Optical Systems Schichtaufbauendes Verfahren zur Herstellung eines dreidimensionalen Gegenstandes sowie dafür geeignete Materialsysteme
US7261542B2 (en) 2004-03-18 2007-08-28 Desktop Factory, Inc. Apparatus for three dimensional printing using image layers
US8119053B1 (en) 2004-03-18 2012-02-21 3D Systems, Inc. Apparatus for three dimensional printing using imaged layers
WO2005090448A1 (fr) 2004-03-21 2005-09-29 Toyota Motorsport Gmbh Poudres pour prototypage rapide et procede de production correspondant
US20050207931A1 (en) 2004-03-21 2005-09-22 Toyota Motorsport Gmbh unknown
US20050242473A1 (en) * 2004-04-28 2005-11-03 3D Systems, Inc. Uniform thermal distribution imaging
US20050263934A1 (en) * 2004-05-28 2005-12-01 3D Systems, Inc. Single side feed parked powder wave heating with wave flattener
US20050263933A1 (en) * 2004-05-28 2005-12-01 3D Systems, Inc. Single side bi-directional feed for laser sintering
US6930278B1 (en) 2004-08-13 2005-08-16 3D Systems, Inc. Continuous calibration of a non-contact thermal sensor for laser sintering
US7521652B2 (en) 2004-12-07 2009-04-21 3D Systems, Inc. Controlled cooling methods and apparatus for laser sintering part-cake
US7569174B2 (en) 2004-12-07 2009-08-04 3D Systems, Inc. Controlled densification of fusible powders in laser sintering
JP4535130B2 (ja) 2004-12-09 2010-09-01 三菱電機株式会社 文字列照合装置および文字列照合プログラム
US20060214335A1 (en) 2005-03-09 2006-09-28 3D Systems, Inc. Laser sintering powder recycle system
US7339712B2 (en) * 2005-03-22 2008-03-04 3D Systems, Inc. Laser scanning and power control in a rapid prototyping system
US7357629B2 (en) 2005-03-23 2008-04-15 3D Systems, Inc. Apparatus and method for aligning a removable build chamber within a process chamber
US7790096B2 (en) 2005-03-31 2010-09-07 3D Systems, Inc. Thermal management system for a removable build chamber for use with a laser sintering system
US7296599B2 (en) * 2005-03-31 2007-11-20 3D Systems, Inc. Pneumatic powder transport system
DE102005015870B3 (de) 2005-04-06 2006-10-26 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objekts
DE102005016940B4 (de) * 2005-04-12 2007-03-15 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Auftragen von Schichten eines pulverförmigen Materials auf eine Oberfläche
US7807947B2 (en) 2005-05-09 2010-10-05 3D Systems, Inc. Laser sintering process chamber gas curtain window cleansing in a laser sintering system
DE102005022308B4 (de) * 2005-05-13 2007-03-22 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objekts mit einem beheizten Beschichter für pulverförmiges Aufbaumaterial
DE102005024790A1 (de) * 2005-05-26 2006-12-07 Eos Gmbh Electro Optical Systems Strahlungsheizung zum Heizen des Aufbaumaterials in einer Lasersintervorrichtung
DE102005030067A1 (de) 2005-06-27 2006-12-28 FHS Hochschule für Technik, Wirtschaft und soziale Arbeit St. Gallen Verfahren und Vorrichtung zur Herstellung eines dreidimensionalen Gegenstandes durch ein generatives 3D-Verfahren
DE102005030854B3 (de) 2005-07-01 2007-03-08 Eos Gmbh Electro Optical Systems Vorrichtung zum Herstellen eines dreidimensionalen Objektes
DE102005034155B3 (de) 2005-07-21 2006-11-16 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
US8267683B2 (en) * 2005-07-27 2012-09-18 Shofu Inc. Apparatus for forming layered object
EP1759791A1 (fr) * 2005-09-05 2007-03-07 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Appareil et méthode de fabrication d'un objet tridimensionnel
US20070063372A1 (en) * 2005-09-19 2007-03-22 Nielsen Jeffrey A Systems and methods of solid freeform fabrication with interchangeable powder bins
US7296990B2 (en) * 2005-10-14 2007-11-20 Hewlett-Packard Development Company, L.P. Systems and methods of solid freeform fabrication with translating powder bins
DE102006014694B3 (de) 2006-03-28 2007-10-31 Eos Gmbh Electro Optical Systems Prozesskammer und Verfahren für die Bearbeitung eines Werkstoffs mit einem gerichteten Strahl elektromagnetischer Strahlung, insbesondere für eine Lasersintervorrichtung
DE102006023484A1 (de) 2006-05-18 2007-11-22 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum schichtweisen Herstellen eines dreidimensionalen Objekts aus einem pulverförmigen Aufbaumaterial
DE102006023485A1 (de) 2006-05-18 2007-11-22 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objekts
US7979152B2 (en) * 2006-05-26 2011-07-12 Z Corporation Apparatus and methods for handling materials in a 3-D printer
DE602007006307D1 (de) 2006-06-20 2010-06-17 Univ Leuven Kath Verfahren und vorrichtung zur in-situ-überwachung und rückkopplungssteuerung selektiver laserpulverbearbeitung
DE102006055054A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055053A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055077A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts und Verfahren zum Einsetzen bzw. Entnehmen eines Behälters
DE102006055074A1 (de) 2006-11-22 2008-06-19 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts und Verfahren zum Zuführen von Aufbaumaterial
DE102006055075A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055050A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts und Verfahren zum Justieren eines Optiksystems von dieser
DE102006055056A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Beschichter zum Auftragen einer Schicht eines pulverförmigen Aufbaumaterials in einer Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055055A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055078A1 (de) 2006-11-22 2008-06-05 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
DE102006055073A1 (de) 2006-11-22 2008-05-29 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum schichtweisen Herstellen eines dreidimensionalen Objekts
US20080122141A1 (en) 2006-11-29 2008-05-29 Bryan Bedal Sinterable Powder
US20080181977A1 (en) * 2007-01-17 2008-07-31 Sperry Charles R Brush assembly for removal of excess uncured build material
US7614866B2 (en) * 2007-01-17 2009-11-10 3D Systems, Inc. Solid imaging apparatus and method
DE102007016656B4 (de) 2007-04-05 2018-10-11 Eos Gmbh Electro Optical Systems PAEK-Pulver, insbesondere zur Verwendung in einem Verfahren zum schichtweisen Herstellen eines dreidimensionalen Objektes, sowie Verfahren zu dessen Herstellung
EP1992709B1 (fr) 2007-05-14 2021-09-15 EOS GmbH Electro Optical Systems Poudre métallique utilisée dans un procédé additif pour la production d'objets tri-dimensionnels et procédé utilisant cette poudre métallique
DE102007029142A1 (de) 2007-06-25 2009-01-02 3D-Micromac Ag Schichtauftragsvorrichtung zum elektrostatischen Schichtauftrag eines pulverförmigen Werkstoffes sowie Vorrichtung und Verfahren zum Herstellen eines dreidimensionalen Objektes
JP5272519B2 (ja) * 2007-07-17 2013-08-28 セイコーエプソン株式会社 三次元造形装置、および三次元造形方法
DE102007056984A1 (de) 2007-11-27 2009-05-28 Eos Gmbh Electro Optical Systems Verfahren zum Herstellen eines dreidimensionalen Objekts mittels Lasersintern
DE102007062129B3 (de) 2007-12-21 2009-06-18 Eos Gmbh Electro Optical Systems Verfahren zum Herstellen eines dreidimensionalen Objekts
US7947919B2 (en) * 2008-03-04 2011-05-24 Universal Laser Systems, Inc. Laser-based material processing exhaust systems and methods for using such systems
US20090283109A1 (en) * 2008-05-16 2009-11-19 Khalil Moussa Methods for Cleaning and Curing Solid Freeform Fabrication Parts
US20090283119A1 (en) * 2008-05-16 2009-11-19 Khalil Moussa Post-Processing System For Solid Freeform Fabrication Parts
EP2123430B1 (fr) 2008-05-20 2020-07-01 EOS GmbH Electro Optical Systems Influences des propriétés mécaniques spécifiques d'objets tridimensionnels fabriqués par un frittage sélectif au moyen d'un rayonnement électromagnétique à partir d'une poudre comportant au moins un polymère ou copolymère
US9895842B2 (en) 2008-05-20 2018-02-20 Eos Gmbh Electro Optical Systems Selective sintering of structurally modified polymers
DE102008024465A1 (de) 2008-05-21 2009-11-26 Eos Gmbh Electro Optical Systems Verfahren und Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts aus einem pulverförmigen Material
DE102008031587A1 (de) 2008-07-03 2010-01-07 Eos Gmbh Electro Optical Systems Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts
JP5250338B2 (ja) * 2008-08-22 2013-07-31 パナソニック株式会社 三次元形状造形物の製造方法、その製造装置および三次元形状造形物
GB0816310D0 (en) 2008-09-05 2008-10-15 Mtt Technologies Ltd Filter assembly
DE102008051478A1 (de) 2008-10-13 2010-06-02 Eos Gmbh Electro Optical Systems Rahmen für eine Vorrichtung zum Herstellen eines dreidimensionalen Objekts und Vorrichtung zum Herstellen eines dreidimensionalen Objekts mit einem solchen Rahmen
DE102008058177A1 (de) 2008-11-20 2010-06-24 Eos Gmbh Electro Optical Systems Verfahren zur Identifizierung von Lasersinterpulvern
GB0821660D0 (en) 2008-11-27 2008-12-31 Univ Exeter The Manufacturing device and method
DE102008060046A1 (de) 2008-12-02 2010-06-10 Eos Gmbh Electro Optical Systems Verfahren zum Bereitstellen einer identifizierbaren Pulvermenge und Verfahren zur Herstellung eines Objekts
US20100155985A1 (en) 2008-12-18 2010-06-24 3D Systems, Incorporated Apparatus and Method for Cooling Part Cake in Laser Sintering
WO2010095987A1 (fr) 2009-02-18 2010-08-26 Arcam Ab Appareil pour produire un objet tridimensionnel
DE102009016585A1 (de) 2009-04-06 2010-10-07 Eos Gmbh Electro Optical Systems Verfahren und Vorrichtung zum Kalibrieren einer Bestrahlungsvorrichtung
DE102009016881A1 (de) 2009-04-08 2010-10-14 Arkema France, S.A. Verfahren zum Herstellen eines dreidimensionalen Objekts unter Verwendung eines Kunststoffpulvers mit antimikrobiellen Eigenschaften und Kunststoffpulver mit antimikrobiellen Eigenschaften für ein derartiges Verfahren
US20110122381A1 (en) 2009-11-25 2011-05-26 Kevin Hickerson Imaging Assembly
FR2948044B1 (fr) * 2009-07-15 2014-02-14 Phenix Systems Dispositif de mise en couches minces et procede d'utilisation d'un tel dispositif
DE102009055661A1 (de) 2009-11-25 2011-05-26 Eos Gmbh Electro Optical Systems Verfahren zum Herstellen eines dreidimensionalen Objekts
DE202009018948U1 (de) 2009-12-02 2014-10-10 Exone Gmbh Anlage zum schichtweisen Aufbau eines Formkörpers mit einer Beschichter-Reinigungsvorrichtung
DE102010004036A1 (de) 2010-01-05 2011-07-07 EOS GmbH Electro Optical Systems, 82152 Vorrichtung zum generativen Herstellen eines dreidimensionalen Objekts mit kontinuierlicher Wärmezufuhr
DE102010004035A1 (de) 2010-01-05 2011-07-07 EOS GmbH Electro Optical Systems, 82152 Vorrichtung zum generativen Herstellen eines dreidimensionalen Objekts mit isoliertem Baufeld
US8710379B2 (en) * 2010-01-15 2014-04-29 Gulzar Ahmed Check weigher comprising of a rotating weighing chute with an accumulating and a discharge position that calculates flow rate by measuring weight accumulated during a predetermined time interval
DE102010008960A1 (de) 2010-02-23 2011-08-25 EOS GmbH Electro Optical Systems, 82152 Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts, das sich insbesondere für den Einsatz in der Mikrotechnik eignet
EP2368696B2 (fr) * 2010-03-25 2018-07-18 EOS GmbH Electro Optical Systems Poudre de PA 12 optimisée par enrichissement destinée à l'utilisation dans un procédé de construction à couche génératif
DE102010019447A1 (de) 2010-05-05 2011-11-10 Eos Gmbh Electro Optical Systems Verfahren zum generativen Herstellen eines dreidimensionalen Objekts mit Räumelementen und Verfahren zum Erstellen eines entsprechenden Datensatzes
DE102010020418A1 (de) 2010-05-12 2011-11-17 Eos Gmbh Electro Optical Systems Vorrichtung und Verfahren zum generativen Herstellen eines dreidimensionalen Objekts mit Baufeldbegrenzung
DE102010020416A1 (de) 2010-05-12 2011-11-17 Eos Gmbh Electro Optical Systems Bauraumveränderungseinrichtung sowie eine Vorrichtung zum Herstellen eines dreidimensionalen Objekts mit einer Bauraumveränderungseinrichtung
JP5774825B2 (ja) * 2010-08-19 2015-09-09 ソニー株式会社 ３次元造形装置及び造形物の製造方法
DE102010040261A1 (de) 2010-09-03 2012-03-08 Eos Gmbh Electro Optical Systems Verfahren zum Herstellen eines dreidimensionalen Objekts mit einer internen Struktur
DE102010042230A1 (de) 2010-10-08 2012-04-12 Eos Gmbh Electro Optical Systems Verfahren zum Beschichten von Objekten, insbesondere solchen Objekten, die durch ein generatives Fertigungsverfahren hergestellt wurden
DE102010043166A1 (de) 2010-10-29 2012-05-03 Eos Gmbh Electro Optical Systems Vorrichtung zur Behandlung von Pulver für eine Vorrichtung zum Herstellen eines dreidimensionalen Objekts und Vorrichtung zum Herstellen eines dreidimensionalen Objekts
US8603217B2 (en) * 2011-02-01 2013-12-10 Universal Laser Systems, Inc. Recirculating filtration systems for material processing systems and associated methods of use and manufacture
JP2013056466A (ja) * 2011-09-08 2013-03-28 Sony Corp 造形装置、除粉装置、造形システム及び造形物の製造方法
FR2984191B1 (fr) * 2011-12-20 2014-01-10 Michelin Soc Tech Machine et procede pour la fabrication additive a base de poudre
WO2014068579A1 (fr) * 2012-11-05 2014-05-08 Yehoshua Sheinman Système et méthode d'impression à jet d'encre directe d'objets en 3d
US9216544B2 (en) * 2012-12-21 2015-12-22 Stratasys, Inc. Automated additive manufacturing system for printing three-dimensional parts, printing farm thereof, and method of use thereof
JP6178492B2 (ja) * 2013-03-15 2017-08-09 スリーディー システムズ インコーポレーテッド レーザ焼結システムのためのシュート

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JP2016519009A (ja) 2016-06-30
US20140265045A1 (en) 2014-09-18
US20140271326A1 (en) 2014-09-18
US20170008234A1 (en) 2017-01-12
WO2014165310A2 (fr) 2014-10-09
US20220324173A1 (en) 2022-10-13
CN105579218A (zh) 2016-05-11
WO2014165310A3 (fr) 2015-02-12
EP2969485A1 (fr) 2016-01-20
US9931785B2 (en) 2018-04-03
US11396134B2 (en) 2022-07-26
EP3556493A1 (fr) 2019-10-23
JP2016518264A (ja) 2016-06-23
JP6178492B2 (ja) 2017-08-09
CN105579218B (zh) 2018-09-18
EP2969486B1 (fr) 2018-05-09
EP2969486A2 (fr) 2016-01-20
WO2014144319A1 (fr) 2014-09-18
US12145317B2 (en) 2024-11-19
CN105163930B (zh) 2017-12-12
EP4049832A1 (fr) 2022-08-31
CN105163930A (zh) 2015-12-16
JP6178491B2 (ja) 2017-08-09
EP2969485B1 (fr) 2019-06-05

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